Computing and printing machine



4 Sheets-Sheet O. J. SUNDSTRAND C OMPUTING AND PRINTING MACHINE A ril 5, 1932.

Original Filed June 30, 192

A ril 5, 1932.

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Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE OSCAR J. SUNDS'J-RAIN'D, OF ROCKFORD, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO SUNIDSTRAND CORPORATION, OF, WILMINGTON; DELAWARE, A CORPORATION OF DELAWARE COMPUTING ANIU PRINTING MACHINE Original application filed June 30, 1926, Serial No. 119,517. Divided and this application filed June 11,

1928. Serial This invention relates to adding machines or to computing machines arranged for ad dition and subtraction, and has special reference to means-v for reciprocating the paper carriage so as to cause the printing to be done in two parallelcolumns.

The invention also has reference to means for controlling certain mechanisms of the computing machine, as, for example, the nonadd mechanism, the subtraction mechanism, and the line-space mechanism, so that the first or left-hand column may contain identifying numbers or other numbers which are not to be added, or so that the numbers printed in the first column are added and those in the second column subtracted from the total of the first column, and so that the platen shall be turned to advance the pa er provide carriage-reciprocating mechanism and mechanism for controlling the mechanisms of the computing machine which are of such nature that they may be readily used in conjunctionwith a machine of the character shown in my application Serial No. 118,628, filed June 26, 1926, without necessitating reorganization. of said machine.

This application is a division of my ap; plicttion Serial No. 119,517 filed June 30., 192

In the accompanying drawings,

Figure 1 is a fragmentary right-hand side elevation :of one form of machine embodying'the features of my invention.

Fig. 2 is a vertical sectional view showing the shaft by means of which the carriage is reciprocated.

Fig. 2 is a side view of a clutch comprised in the carriage-reciprocating means.

Fig. 3 is a fragmental plan section showing the means for preventing casual movement of said shaft.

Fig. 4 is a front view of the mechanism whichserves to reciprocate the carriage and control the computing-machine mechanisms.

Fig. 5 is a right-hand side view of the view of the paper carriage.

Fig. 6 is a fragmental detail view of the slide bar by means of which the carriage is reciprocated and the connecting rod comprised in the means for reciprocating said Fig. 7 is a sectional view of a means for guiding the levers that control certain slides.

Figs. 8, 9 and 10 are detail views of the slides. that control certain functions of the computing machine.

Fig. 11 is a plan view of the parts shown in Fig. 4, the slide bar being at one end of its stroke.

Figs. 12, 13 and 14 are detail views of certain controlling slides.

Fig. 15 is a sectional view takenon the plane of line 15 of Fig. 11.

Fig. 16 is a view similar to Fig. 11, but showing the slide bar at the opposite end of its stroke.

Fig. 17 is a detail view of a plate comprised in the means for reciprocating the paper carriage.

Figs. 18, 19 and 20 illustrate specimens of work which may be done with a machine embodying the present invention.

in my application Serial No. 118,628, filed June 26, 1926, for United States patent and in French Patent No. 625,678 and German Patent No. 180,884, I have shown an adding and subtracting machine to which the present improvements are particularly, although not exclusively, adapted. The machine shown in that application is of the general type disclosed in the Sundstrand Patents Nos. 1,198,487 and 1,583,102, and is provided with a cross-tabulating carriage arranged to control the mechanisms of the adding and sub tracting machine so as to eflect non-addition, subtraction and line-spacing, among other operations, at desired times. The means by which the carriage exercises such control comprises a stop plate attached to the rear portion of the carriage and having upon its lower side a number of rows of stop pins which in the leftward travel of the paper carriage engage slides which are compactly grouped together and located below the path of the stop plate, said slides in turn controlling various machanisms comprised in the ad ing and subtracting machine.

The machine shown in the present drawings is generally similar to the machine of said application Serial N 0. 118,628, but it is provided with means for reciprocating the paper carriage between two positions, such a carriage being known in the art as a shuttle carriage. Referring now to the drawings, 1 is a paper carriage, 26 is the main rock shaft, and 27 is the operating handle, said handle being arranged to oscillate the shaft 26. 1010 is a plate detachably secured to a rock shaft 1011 mounted on the paper carriage 1, the means for attaching theplate 1010' to said rock shaft being like that fully disclosed in my said application Serial No. 118,628, although it may be of any preferred character. 1012 is an operating lever upon the righthand end ofthe shaft 1011 for turning said shaft to raise the rear edge of the plate 1010. The non-add mechanism, the means for setting the computing machanism to perform subtraction, and the means for controlling the line-space or paper-feed mechanism are controlled by slides 1045, 1069 and 1114, respectively (see Figs. 8, 9 and 10) as fully ex plained in my said ap lication Serial No. 118,628.. As shown in ig. 1 of the present drawings, the slides 1045, 1069 and 1114 are located side by side for reciprocation transversely of the machine. They are arranged directly below and close to the path of the plate 1010, although in this instance the plate 1010 doesnot carry any pins to operate the slides, but, on the contrary, forms part of the means for reciprocating the carriage 1.

Most of the elements of the carriage-reciprocating means and the devices whereby the carriage-reciprocating means and the slides 1045, 1069 and 1114 are controlled are contained within and supported upon a casing which constitutes a unit that maybe readily applied to an adding, subtracting or duplex machine without necessitating the reorganization of the latter. The casing referred to is indicated at 1200 in the drawings and is secured to the machine by means of a screw 1201 (Fig. 1) extending through a lug 1202 on said casing and into the base of the machine. The casing is further secured in place by means of two screws 1203 (Fig. 1) extending through openings in the carriage track bar 1108 and engaging tapped openings 1204 (Fig. 11) in a lug or flange 1205 on the casing 1200.

The carriage-reciprocating means comprises a bar 1206 supported on the casing 1200 for reciprocation transversely of the machine. At the lefthand end of the bar 1206 is a stud 1207 adapted to enter any one of three notches 1208 (Fig. 17) in the rear edge of the pivoted plate 1010. It will be nae-5234a seen that by depressing the lever 1012 the plate 1010* may be tilted out of engagement with the stud 1207, after which the carriage may be manually moved to place any one of the notches 1208 in engagement with the stud 1207, whereby apair of columns may be printed at any one of three different positions on a sheet.

The right-hand end ofthe bar 1206 is adjustably connected by means of a screw 1209 (Fig. 6) and a slotted bracket 1210 to a connecting rod 1211 which in turn is adjustably connected by means of a screw 1212 to a slotted crank arm 1214 fixed upon the upper end of a vertical shaft 1215 (Fig. 2). The shaft 1215 is journaled for rotation in bearings 1216 and 1217 in the casing 1200.

The means for rotating the shaft 1215 comprises a rod 1218 mounted to slide back and forth in the casing 1200. The forward end of the rod 1218 may be connected to the rock shaft 26 in any preferred manner, as, for example, by means of an angular member comprising an arm 1219 which is attached to the rod 1218, and an arm 1220 which is pivoted at 1221 to an arm 1222 fixed on the rock shaft 26. The arms 1219 and 1220 are connected by a web 1223 (Fig. 4) that slides in an elongated opening 1224 formed between the base and the casing of the machine.

with a pinion 1226 (Fig. 2) which is ro tatably mount-ed .upon theshaft 1215. In the upper end of the hub of the pinion 1226 are formed two diametrically opposite notches. Each notch has a vertical end wall 1227 and an inclined end wall 1228. Directly above the pinion 1226 is a clutch collar 1229 which 7 is vertically slidable upon the shaft 1215, but

is relatively non-rotatably connected therewith by means of a pin 1230 fixed in the shaft and extending through slots 1231' in the clutch collar. On the lower end of the clutch collar are diametrically opposite lugs 1232 each having a vertical side adapted to .be

engaged by the vertical wall 1227 of one of the notchescin the hub of the pinion 1226. and a rounded side adapted to be engaged by the cam wall 1228. A coiled expansive spring 1233 normallyholds the clutch collar 1229 in engagement with the hub of the pin- 1011.

In the forward stroke of the handle the pinion turns a little more than 180 countercloc ise, as viewed from above, the cam walls 1228 of the notches in the hub'of said ,pinion forcin the lugs 1232 up out of said notches, and t e lugs dropping back into the notches as the pinion completes a half revolution. When the handle returns, the pinion is rotated in a clockwise direction, the walls 1227 of the notches in thepinion hub acting against the lugs 1232 and thus turning the clutch collar 1229 and the shaft 1215 Rack teeth 1225 cut in the rod 1218 mesh .its positions,

through a half revolution, whereby the paper carriage 1 is moved from one to the other of its positions. To prevent the shaft 1215 from turning by momentum through more than 180 and thusto insure definiteness in the stopping of the carriage in each of its positions, there issecured to the shaft 1215 a circular flange 1234 having two diametrically opposite notches 1235 corresponding in position to the two positions of the carriage. An arm 1236 pivoted at 1237 within the casing 1200 carries a roller 1238 adapted to lie in the notches 1235 and to run on the periphery of the flange 1234. A coiled contractile spring 1239 presses the roller 1238 against the flange 1234.

Means may be provided for holding the clutch collar 1229 up out of engagement with the hub of the pinion 1226 when it is not desired to print in parallel columns. The means herein shown for this purpose comprises a lever 1240 (Fig. 1) pivoted at 1241 within the casing 1200, the forward end of said lever extending through an opening in the front wall of the casing 1200 and being provided with a finger piece 1242. The rear end of the lever 1240 underlies a circular flange 1243 on the clutch collar. When the finger piece 1242 is depressed, the rear end of the lever 1240 lifts the clutch collar out of engagement with the hub of the pinion. In order yieldingly to hold the lever 1240 in eitherof I employ a latch 1244 pivoted at 1245 in the casing 1200 and having two notches adapted to receive a pin 1246 on the lever 1240. A coiled contractile spring 1247 presses the latch against said pin.

The means for actuating the slides 1045, 1069 and 1114 comprises three slides 1248, 1249 and 1250 (Figs. 12 to 15 inclusive) alined with the first mentioned slides. 7 These slides are mounted side by side and are supported upon two studs 1251 (Figs.4,11 and 15) which extend through slots 1252 in the respective slides into engagement with a stationary bracket 1251*. The left-hand .ends of the slides 1248, 1249 and 1250 are arranged to bear against the slides 1045, 1069 and 1114, respectively. Coiled contractile springs 1253 tend to move the slides 1248, 1249 and 1250 toward the slides 1045, 1069 and 1114, respectively.

The means for movingthe slide 1248 away from the non-add slide 1045 against the tension of the spring 1253 comprises a plate 1254 (Fig. 16) which is virtually a bell-crank lever pivoted at 1255; said plate having thereon a roller stud 1256 adapted to be engaged by a cam surface 1257 on the slide bar 1206 and also adapted to run along the edge or dwell surface 1258 of said bar. A coiled contractile spring 1259 (Fig. 11) attached to a pin 1260 on the plate 1254 holds the roller stud 1256 in engagement with the slide bar 1206. A lug 1261 on the plate 1254 is arranged to engage a lug 1262 on the slide 1248 to push said slide away from the non-add slide 1045.

The means for moving the slides 1249 and 1250 away from the subtraction slide 1069 and the line-space slide 1114, respectively, comprises a plate 1263 slidably mounted on screws 1264 extending through elongated openings1265 in said plate. On the left: hand end of the plate 1263 is a lug 1266 arranged to bear against a pin 1267 on the plate 1254. On the opposite end of the plate 1263 is a finger 1268 arranged to bear against lugs 1269 on the slides 1249 and 1250.

Itwill be seen that when the slide bar 1206 moves toward the left from the position shown in Fig. 11 to that illustrated in Fig. 16 (thus positioning the'carriage for printing in the right-hand column) the cam surface 1257 on said bar will turn the lever 1254 in the direction to swing the lug 1261 toward the right thereby pushing the slide 1248 to the right. The described movement of the lever 1254 also moves the pin 1267 toward the left, the springs 1253 attached to the slides 1249 and 1250 being thus allowed to move said slides toward the left and against the slides 1069 and 1114. However, all of the slides 1248, 1249 and 1250 are not permitted to function during any given operation as non-addition in one column and subtraction in the other column would never be desired. Means is therefore provided for holding one or more of the slides 1248, 1249 and 1250 out of action. While this means may be of any preferred character, I have herein shown three levers 1270 pivoted on the casing 1200 on an axis 1271 extending parallel with the direction of movement of said slides. Each of these levers has a forwardly projecting finger piece 1272 and an upwardly extending arm which is guided in a slot 1273 (Fig. 7),

formed in a stud 1274 projecting from the right-hand side of the casing 1200. On the upper end of each of the levers 1270 is a lug 1275 adapted to engage a lug 1276 on the slides 1248, 1249 and 1250, and thus hold said slides at'the right-hand end of their stroke.

To hold the levers 1270. in adjusted position there is provided for each of said levers a latch 1277 (Fig. 5) having two notches to receive a headed stud 1278 on the lever. A coiled contractile spring 1279 holds the latch in engagement with said stud.

The nature of the work which may be done.

upon this machine is illustrated in Figs. 18, 19 and 20. Fig. 18 represents a specimen of work which may be done upon a machine hav ing two counters and equippedwith the controls hereinbefore" described. For full disclosure of one form of duplex machine to which the present invention may be applied, reference may be made to my application Serial No, 720,187, filed June 16, 1924 (now Patent No. 1,724,231, dated August 13,1929).

"The first counter may be used to accumulate debits and the second. counter for credits, the

machine being normally set to accumulate in the first counter, but being operable by a slide such as the slide 1069 to withdraw the first counter from action and place the second counter in action.

During the production of the work represented in Fig. 18, the non-add slide 1248 would be held out of action by raising the finger piece 1272 marked NA in the drawings. The subtraction (or credit) finger piece and the paper feed finger piece would be in their down position, thus leaving the slides 1249 and 1250 free to reciprocate. r

Fig. 19 illustrates a specimen of work done upon an adding and subtracting machine similar to that disclosed in my application Serial No. 670,665, (which corresponds to British Patent N 0. 223,866) the finger pieces .1272 being in the positions just described.

Fig. 20 shows a specimen of work done with the subtraction slide 1249 held out of action, the non-add slide 1248 and the paper feed slide 1250 being free to reciprocate.

During the production of the work depicted in Figs. 18, 19 and 20, the clutch lever 1240 is in its up position, as shown in Figs. 1 and 4, thereby permitting the carriage to be reciprocated in the operation of the handle 27. When it is desired to do single-column work, such as illustrated, for example, in my applications Serial Nos. 670,665 and 720,187, the clutch lever 1240 is moved into its down position, thus holding the clutch collar 1229 up out of engagement with the hub of the pinion 1226 and allowing the latter to oscillate idly.

It will be seen that I have provided a self contained structural unit capable of application to an adding machine without modification of the latter and arranged to be readily connected to the operating handle and the paper carriage. It will also be evident that this unit is adapted to control certain mechanisms of the machine.

lVhile the present embodiment of the invention has been described in considerable detail, it will be understood that various modifications may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim as my invention:

1. The combination with a computing and printing machine having a laterally movable paper carriage and a plurality-of controlling members arranged at the rear of the paper carriage. of a casing secured to the righthand side of the machine, means supported by said casing and connected to the paper carriage for reciprocating the latter, a plurality of slides mounted on said casing in position to engage said controlling members, and means actuated by the carriage-reciprocating means for actuating said slides.

2. The combination with a computing and printing machine having a laterally movable members,

members at the rear of the paper carriage and a plurality of controlling of a casing secured to the machine, means supported by said casing and con nected to the paper carriage for reciprocating the latter, a plurality of slides mounted on said casing in position to engage said controlling members, and means actuated by the carriage-reciprocating means for actuating said slides.

3. The combination, in a computing and printing machine, of a laterally movable pa:

per carriage, a plurality of controlling members, means for reciprocating the paper carriage, a plurality of slides mounted in position to engage said controlling members, and means actuated by the carriage-reciprocating means for actuating'said slides.

The combinationyin a computing and printing machine, of a laterally movable paper carriage, a plurality of controlling members, means for reciprocating the paper carriage, a plurality of members each mounted in position to engage one of said controlling members, and meansfor actuating the second-mentioned members.

5. The combination, in a computing and printing machine, of a laterally movable paper carriage,'a plurality of controlling members, means for reciprocating the paper carriage, and means actuated by the carriagereciprocating means for actuating said controlling members.

6. The combination, in a computing and printing machine, of a laterally movable paper carriage, means to control the machine, means for reciprocating the paper carriage, and means actuated by the carriage-reciprocating means for actuating said controlling means. t

7. The combination with a computing and printing machine having a laterally movable paper carriage and a plurality of controlling machine, of a casing secured to the side of the machine, means supported by said casing and connected to the paper carriage for reciprocating the latter, a plurality of members mounted on said casing in position to engage said controlling members, and means actuated by the carriage-reciprocating means for actuating the second-mentioned members. A

8. The combination with a computing and printing machine having a laterally movable paper carriage and a plurality of controlling members at the rear of the machine, of means connected to the paper carriage for re cipro-' eating the latter, a plurality of members each for engaging one of said controlling memmentioned members.

9. A computing and printing machine having, in combination, a controlling slide, a stationary support for the slide, a slide alined with the first mentioned slide, a stationary support for the second slide, a spring tending to move the second slide against the first slide, and manually operable means for bolding the second slide against movement by said spring.

10. A computing and printing machine having, in combination, a set of controlling slides compactly grouped together side by side, a stationary support for the group of slides, a set of slides alined with the first mentioned slides, a stationary support for the second set of slides, a paper carriage, means for moving; the paper carriage, means for reciprocating the second mentioned slides, and a plurality of manipulative devices, one for each of the second mentioned slides, for holding the latter in inoperative position.

11. The combination with a computing and printing machine having a laterally movable paper carriage and a plurality of controlling members, of a casing secured to the machine, means supported by said casing and connected to the paper carriage for reciprocating the latter, a plurality of members mounted on said casing each in position to engage one of said. controlling members, means for actuating said second mentioned plurality of members, and a plurality of manipulativedevices, one for each of the second mentioned members, for holding the latter out of action.

I 'said devices being mounted on said casing.

12. A computing and printing machine having, in combination, a plurality of members for controlling the machine, a plurality of slides for operating said members, individual springs for moving said slides against said and means ,for remembers, a paper carriage, ciprocating the paper carriage, said reciprocating means beingarranged to movesaid slides against the influence of said springs.

13. A computing and printing machine having, in combination, a controlling slide, a slide alined with the first mentioned slide, a spring tending to move the second slide against the first slide, a paper carriage, means for reciprocating the paper carriage, and

means actuated by the carriage-reciprocating means for moving the second slide against the influence of said spring.

14. A computing and printing machine having, in combination, acontrolling member, a stationary support for said member, a slide alined with said member, a stationary support for the slide, a spring tending to move the slide against said member, and means for moving the slide against the influence of said spring. v

15. A computing and printing machine having, in combination, a set of controlling slides compactly grouped together side by side, a stationary support for the group of slides, a set of slides alined with the first mentioned slides, a stationary support for the second set of slides, a paper carriage, means .for moving the paper carriage in opposite directions, and means for reciprocating the second mentioned slides in accordance with the position of the paper carriage.

16. A computing and printing machine having, in combination, a controlling slide, a statlonary support for the slide, a slide alined with the first mentioned slide for moving the latter, a stationary support for the second slide, a paper carriage, means for moving the paper carriage in opposite directions and means for reciprocating the second slide.

17. A computing and printing machine having, in combination, a paper carriage, means for reciprocating the paper carriage including a slide bar having a cam surface and a dwell surface thereon, a bell crank member arranged to be moved in one direction by said cam surface, a spring for moving said 

